What fill fluid is used for acidic medium of fuji transmitter？
Usually the Fuji transmitter diaphragm capsule is filled with silicone or fluorine oil.
Silicon oil has the 2kinds low-temperature silicon oil and high temperature silicone oil. The minimum temperature of the low-temperature silicone oil at low temperature silicone oil can reach -40 ° C, which is enough to cope with the climatic conditions of general high-latitude areas. Improve the use of temperature; the boiling point of high temperature silicone oil is higher, but the evaporation volume will increase with the temperature when the boiling point is lower, so its maximum use temperature can reach about 310 ° C.
When the on -site medium changes fluctuate for a small hour, the silicon oil of different brands can be selected according to the different use temperature of the transmitter.
Compared with silicon oil, fluorine oil is small choosed, and basically only occurs in the case of oxygen measurement or chlorine. In this case, silicon oil will produce a chemical reaction with oxygen and chlorine. It is also inevitable that its penetration and reaction in the case of long -term direct contact is also inevitable.
Because the fluorine is an inert liquid, its chemical properties are not lively, so the use temperature is between -45 and 250 ° C in a Fuji transmitter that is measured in oxygen measurement or pinemamping. The medium performance is also slightly inferior to silicone oil, and the price is higher than silicone oil, so it is only used in the case of specific acid corrosive media.
The use of fluor oil can increase the applicable temperature limit, but it may need to be recharged in one year or two.
Common special needs include high temperature, low temperature and rapid response....
